What is the relationship between wave length and wave frequency ?, Inverse proportion, What is a crest in light wave ?, A crest in light waves is the highest point in the wave ., what is the law that calculates "f " the frequency of the light wave?, f = C / ƛ, How many fields constitute an electromagnetic (light) wave?, two fields (B and E), what is the angle between the electrical field and the direction of the wave ?, 90 deg

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